CN114426800A - High-temperature-resistant anticorrosive paint with self-healing characteristic and preparation method thereof - Google Patents
High-temperature-resistant anticorrosive paint with self-healing characteristic and preparation method thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
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- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
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- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 6
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 5
- 239000010433 feldspar Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
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- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 229910021485 fumed silica Inorganic materials 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 claims description 3
- YLKVIMNNMLKUGJ-UHFFFAOYSA-N 3-Delta8-pentadecenylphenol Natural products CCCCCCC=CCCCCCCCC1=CC=CC(O)=C1 YLKVIMNNMLKUGJ-UHFFFAOYSA-N 0.000 claims description 3
- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 claims description 3
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- 239000004952 Polyamide Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 3
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 claims description 3
- 238000006482 condensation reaction Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The invention discloses a high-temperature-resistant anticorrosive paint with self-healing characteristic and a preparation method thereof, wherein the raw materials comprise: the self-healing epoxy modified organic silicon resin, the glass beads, the high-temperature-resistant filler, the corrosion inhibitor, the assistant and the epoxy curing agent are selected as the base material, and the glass beads with different melting points are added, so that the defect of poor adhesive force of the conventional organic silicon coating is overcome, the self-healing epoxy modified organic silicon resin has higher adhesive force with various metal base materials, the self-healing epoxy modified organic silicon resin can be self-healed in the initial stage of microcrack of the coating, the protection requirements under different temperatures can be met, the self-healing epoxy modified organic silicon resin has a series of advantages of simple construction, good temperature resistance, long protection time, low VOCs emission and the like, and can be widely applied to the protection of various high-temperature pipelines in ships.
Description
Technical Field
The invention belongs to the technical field of chemical materials, and particularly relates to a high-temperature-resistant anticorrosive coating with self-healing characteristics and a preparation method thereof.
Background
The ship management system is complex and large in number and penetrates among the cabins. The heat distribution pipe system is one of the most important components in the pipeline system, and mainly comprises a superheated steam pipeline, a saturated steam pipeline, a hot waste gas pipeline, a hot waste liquid pipeline, a high-low pressure drain pipeline and the like. The heat distribution pipelines are in severe corrosion environments such as ocean atmosphere, high temperature (200-600 ℃) and gas-liquid for a long time, obvious corrosion phenomena such as high-temperature oxidation and seawater soaking are easy to occur, bad phenomena such as foaming, cracking and falling are easy to occur, and the heat distribution pipelines are one of the most serious ship corrosion parts;
the epoxy high-temperature-resistant anticorrosive paint has the advantages of high adhesion and good anticorrosive performance, but is difficult to meet the long-term high-temperature-resistant use requirement. The organosilicon high-temperature-resistant anticorrosive paint has excellent temperature resistance, can resist the temperature of 600 ℃ at most, but has low adhesive force, is easy to generate the bad phenomena of foaming, falling off and the like after being used for a long time in the marine environment, and is difficult to meet the long-term use requirement. Therefore, the characteristics of the epoxy resin and the organic silicon resin can be combined, and organic silicon resin grafting modification can be carried out on the epoxy resin, so that the high-temperature-resistant anticorrosive coating with excellent adhesive force and shielding property can be developed.
With the intensive departure of various international agreements (AFS agreement, PSPC agreement, etc.) for limiting ship waste discharge, which are made by International Maritime Organization (IMO), various environmental protection policies are made by countries and places in succession, and the discharge control of VOCs becomes increasingly strict. In 2018, 1 month and 1 day, the environmental protection tax Law is issued in China, VOCs of benzene, toluene and the like are definitely brought into the tax collection range, and the green shipbuilding technology increasingly becomes the key of the competitiveness of shipbuilding industry. At present, the main problems of the green shipbuilding technology in China are how to improve the resource utilization efficiency, protect the environment and reduce the environmental hazard. Therefore, high-temperature resistant coatings, heavy anti-corrosion coatings, weather-resistant finish paints, shop primers and the like which are used in large quantities on ships meet technical bottlenecks such as high content of VOCs (volatile organic compounds) in upgrading and updating of products in a coating development mode based on traditional raw materials, and research on water-based and high solid content is urgently needed.
The coating prepared in the prior art can have higher temperature resistance, but has certain defects. If high-temperature heating curing is needed, the coating has insufficient toughness due to high content of the inorganic filler, contains heavy metals, still discharges a small amount of VOCs, and the like.
Disclosure of Invention
In order to solve the problems, the invention provides a high-temperature-resistant anticorrosive paint with a self-healing characteristic and a preparation method thereof, wherein the paint has excellent anticorrosive performance, excellent high-temperature-resistant performance and a self-healing characteristic, and has a series of advantages of simple construction, good temperature resistance, long protection time, low VOCs emission, self-healing at the early stage of coating damage and the like.
The invention is realized by the following technical scheme:
a high-temperature-resistant anticorrosive paint with a self-healing characteristic comprises the following raw materials in parts by weight: 30-40 parts of self-healing epoxy modified organic silicon resin, 15-20 parts of glass beads, 10-20 parts of high-temperature-resistant filler, 10-20 parts of corrosion inhibitor, 1-3 parts of auxiliary agent and 16-20 parts of epoxy curing agent;
the structural formula of the self-healing epoxy modified organic silicon resin is as follows:
Preferably, R in the self-healing epoxy modified silicone resin1Is a silicone chain segment with the structure of
The range of n 2-n 4 is 2-8.
Preferably, the synthesis method of the self-healing epoxy modified organic silicon resin comprises the following steps: using bisphenol A epoxy resin, and mixing it with ClCH2CH2SH undergoes a substitution reaction and is grafted to phenolic hydroxyl groups, and then the silicone resin is grafted to an epoxy resin main chain through a dehydration condensation reaction with the hydroxyl groups.
Preferably, the self-healing epoxy modified silicone resin is synthesized by the following route:
preferably, the glass beads comprise one or a combination of more of three types of glass frits with the melting points of 200-300 ℃, 350-450 ℃ and 500-600 ℃.
Preferably, the high-temperature-resistant filler comprises one or more of silica powder, kaolin, feldspar powder, zinc powder and alumina.
Preferably, the corrosion inhibitor comprises one or more of aluminum tripolyphosphate, barium petroleum sulfonate, dibutyl phthalate and benzotriazole.
Preferably, the auxiliary agent can be selected from one or more of BYK110, BYK530A and fumed silica.
Preferably, the epoxy curing agent is one or more selected from an amido amine curing agent, a polyamide adduct curing agent and a cardanol modified phenolic aldehyde amine curing agent.
A preparation method of a high-temperature-resistant anticorrosive paint with self-healing characteristics comprises the following specific steps:
(1) adding the self-healing epoxy modified organic silicon resin weighed according to the mass parts into a dispersion tank, adding an auxiliary agent, and dispersing at a high speed for 10min at a rotating speed of 500-800 r/min to obtain a resin solution system;
(2) adding glass beads, high-temperature-resistant filler and corrosion inhibitor weighed in parts by weight into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed of 1000-1500 r/min for 1-3 h to obtain a viscous liquid mixture;
(3) adding a solvent into the viscous liquid mixture obtained in the step (2) in batches to adjust the viscosity of the mixture, and dispersing at a high speed of 1200-1500 r/min for 1-3 h to obtain a pre-dispersion coating, wherein the solvent is a mixture of xylene and n-butyl alcohol;
(4) continuously dispersing the pre-dispersed coating obtained in the step (3) at the rotating speed of 1500r/min until the fineness of the coating is less than or equal to 80 mu m;
(5) and (4) mixing and uniformly stirring the epoxy curing agent and the mixture obtained in the step (4) according to the mass part to obtain the self-healing high-temperature-resistant anticorrosive paint.
The invention has the beneficial effects that:
(1) the epoxy modified organic silicon resin is adopted, the advantages of the epoxy resin and the organic silicon resin are combined, and the epoxy modified organic silicon resin has high adhesive force and long-term high-temperature resistance;
(2) according to the invention, a dynamically changeable chemical bond is introduced into the epoxy modified organic silicon resin, and when the coating generates microcracks, an-SH group in the resin can form an-S-S-bond, so that the self-healing effect of the coating is realized;
(3) the coating formula of the invention contains glass beads with different melting points, and when the temperature exceeds the melting point of the glass beads, the glass beads are melted, so that the adhesion effect of the coating is further enhanced, and a compact high-temperature-resistant organic/inorganic layer is formed, thereby achieving the effect of high-temperature corrosion resistance.
Drawings
FIG. 1 is a diagram of the application of the high-temperature resistant coating in high-temperature pipelines of ships.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the accompanying drawings.
A high-temperature-resistant anticorrosive paint with a self-healing characteristic comprises the following raw materials in parts by weight: 30-40 parts of self-healing epoxy modified organic silicon resin, 15-20 parts of glass beads, 10-20 parts of high-temperature-resistant filler, 10-20 parts of corrosion inhibitor, 1-3 parts of auxiliary agent and 16-20 parts of epoxy curing agent;
the structural formula of the self-healing epoxy modified organic silicon resin is as follows:
The self-healing epoxy modified organic silicon resin has the self-healing function under the action of-SH groups in side chains, and when the coating has microcracks, the-SH groups in the resin can form-S-S-bonds, so that the self-healing effect of the coating is realized. The action process is as follows:
preferably, R in the self-healing epoxy modified silicone resin1Is a silicone segment, whichHas the structure of
The range of n 2-n 4 is 2-8.
Preferably, the synthesis method of the self-healing epoxy modified organic silicon resin comprises the following steps: using bisphenol A epoxy resin, and mixing it with ClCH2CH2SH undergoes a substitution reaction and is grafted to phenolic hydroxyl groups, and then the silicone resin is grafted to an epoxy resin main chain through a dehydration condensation reaction with the hydroxyl groups.
The synthetic route is as follows:
preferably, the glass beads comprise one or a combination of more of three types of glass frits with melting points of 200-300 ℃, 350-450 ℃ and 500-600 ℃.
Preferably, the high-temperature-resistant filler comprises one or more of silica powder, kaolin, feldspar powder, zinc powder and alumina.
Preferably, the corrosion inhibitor comprises one or more of aluminum tripolyphosphate, barium petroleum sulfonate, dibutyl phthalate and benzotriazole.
Preferably, the auxiliary agent can be selected from one or more of BYK110, BYK530A and fumed silica.
Preferably, the epoxy curing agent is one or more selected from an amido amine curing agent, a polyamide adduct curing agent and a cardanol modified phenolic aldehyde amine curing agent.
A preparation method of a high-temperature-resistant anticorrosive paint with self-healing characteristics comprises the following specific steps:
(1) adding the self-healing epoxy modified organic silicon resin weighed according to the parts by mass into a dispersion tank, adding an auxiliary agent, and dispersing at a high speed of 500-800 r/min for 10min to obtain a resin solution system;
(2) adding glass beads, high-temperature-resistant filler and corrosion inhibitor weighed in parts by weight into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed of 1000-1500 r/min for 1-3 h to obtain a viscous liquid mixture;
(3) adding a solvent into the viscous liquid mixture obtained in the step (2) in batches to adjust the viscosity of the mixture, and dispersing at a high speed of 1200-1500 r/min for 1-3 h to obtain a pre-dispersion coating, wherein the solvent is a mixture of xylene and n-butyl alcohol;
(4) continuously dispersing the pre-dispersed coating obtained in the step (3) at the rotating speed of 1500r/min until the fineness of the coating is less than or equal to 80 mu m;
(5) and (4) mixing and uniformly stirring the epoxy curing agent and the mixture obtained in the step (4) according to the mass part to obtain the self-healing high-temperature-resistant anticorrosive paint.
The specific embodiment is as follows:
example 1
The self-healing high-temperature-resistant anticorrosive coating formula of the embodiment is as follows:
self-healing epoxy modified silicone resin, n1=2, n2=3, 35 parts;
20 parts of glass beads (the melting point is between 200 and 300 ℃);
10 parts of silicon powder;
10 parts of kaolin;
aluminum tripolyphosphate, 15 parts;
BYK530A, 1 part;
1 part of fumed silica;
20 parts of epoxy curing agent.
The self-healing high-temperature-resistant anticorrosive paint and coating obtained in the embodiment have the performance test results shown in table 1.
Table 1 self-healing high-temperature resistant anticorrosive paint performance test results
Example 2
The self-healing high-temperature-resistant anticorrosive coating formula of the embodiment is as follows:
self-healing epoxy modified silicone resin, n1=2, n2=5, 35 parts;
10 parts of glass beads (the melting point is between 200 and 300 ℃);
10 parts of glass beads (the melting point is 350-400 ℃;
10 parts of silicon powder;
10 parts of feldspar powder;
10 parts of aluminum tripolyphosphate;
5 parts of barium petroleum sulfonate;
BYK110, 1 part;
BYK530A, 1 part;
20 parts of epoxy curing agent.
The self-healing high-temperature-resistant anticorrosive paint and coating obtained in the embodiment have performance test results shown in table 2.
Table 2 self-healing high-temperature resistant anticorrosive paint performance test results
Example 3
The self-healing high-temperature-resistant anticorrosive coating formula of the embodiment is as follows:
self-healing epoxy modified silicone resin, n1=2, n2=5, 35 parts;
5 parts of glass beads (the melting point is between 200 and 300 ℃);
5 parts of glass beads (the melting point is 350-400 ℃);
10 parts of glass beads (the melting point is 500-600 ℃;
15 parts of silicon powder;
5 parts of aluminum oxide;
5 parts of dibutyl phthalate;
5 parts of barium petroleum sulfonate;
benzotriazole, 5 parts;
BYK110, 1 part;
BYK530A, 1 part;
22 parts of epoxy curing agent.
The self-healing high-temperature-resistant anticorrosive paint and coating obtained in the embodiment have performance test results shown in table 3.
TABLE 3 self-healing high-temperature-resistant anticorrosive paint performance test results
Example 4
The self-healing high-temperature-resistant anticorrosive coating formula of the embodiment is as follows:
self-healing epoxy modified silicone resin, n1=2, n2=5, 35 parts;
10 parts of glass beads (the melting point is between 200 and 300 ℃);
10 parts of glass beads (the melting point is 500-600 ℃;
10 parts of feldspar powder;
5 parts of zinc powder;
5 parts of aluminum oxide;
5 parts of aluminum tripolyphosphate;
5 parts of barium petroleum sulfonate;
benzotriazole, 5 parts;
BYK110, 2 parts;
21 parts of epoxy curing agent.
The self-healing high-temperature-resistant anticorrosive paint and coating obtained in the embodiment have performance test results shown in table 4.
Table 4 self-healing high temperature resistant anticorrosive paint performance test results
In conclusion, the construction is simple, and the prepared coating has a series of advantages of good temperature resistance, long protection time, low VOCs emission and the like, and can be widely applied to the protection of various high-temperature pipelines in ships.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. A high-temperature-resistant anticorrosive paint with self-healing characteristic is characterized in that: the feed comprises the following raw materials in parts by mass: 30-40 parts of self-healing epoxy modified organic silicon resin, 15-20 parts of glass beads, 10-20 parts of high-temperature-resistant filler, 10-20 parts of corrosion inhibitor, 1-3 parts of auxiliary agent and 16-20 parts of epoxy curing agent;
the structural formula of the self-healing epoxy modified organic silicon resin is as follows:
2. The high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: r in self-healing epoxy modified organic silicon resin1Is a silicone chain segment with the structure of
The range of n 2-n 4 is 2-8.
3. The high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: the synthesis method of the self-healing epoxy modified organic silicon resin comprises the following steps: using bisphenol A epoxy resin, and mixing it with ClCH2CH2SH undergoes a substitution reaction and is grafted to phenolic hydroxyl groups, and then the silicone resin is grafted to an epoxy resin main chain through a dehydration condensation reaction with the hydroxyl groups.
4. A high temperature resistant and corrosion resistant coating with self-healing properties according to claim 1 or 3, wherein: the synthetic route of the self-healing epoxy modified organic silicon resin is as follows:
5. the high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: the glass beads comprise one or a combination of more of three types of glass frits with melting points of 200-300 ℃, 350-450 ℃ and 500-600 ℃.
6. The high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: the high-temperature-resistant filler comprises one or more of silica powder, kaolin, feldspar powder, zinc powder and alumina.
7. The high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: the corrosion inhibitor comprises one or more of aluminum tripolyphosphate, barium petroleum sulfonate, dibutyl phthalate and benzotriazole.
8. The high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: the auxiliary agent can be selected from one or more of BYK110, BYK530A and fumed silica.
9. The high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: the epoxy curing agent is selected from one or more of amido amine curing agent, polyamide adduct curing agent and cardanol modified phenolic aldehyde amine curing agent.
10. The preparation method of the high-temperature-resistant anticorrosive paint with self-healing property according to claim 1, characterized in that: the method comprises the following specific steps:
(1) adding the self-healing epoxy modified organic silicon resin weighed according to the mass parts into a dispersion tank, adding an auxiliary agent, and dispersing at a high speed for 10min at a rotating speed of 500-800 r/min to obtain a resin solution system;
(2) adding glass beads, high-temperature-resistant filler and corrosion inhibitor weighed in parts by weight into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed of 1000-1500 r/min for 1-3 h to obtain a viscous liquid mixture;
(3) adding a solvent into the viscous liquid mixture obtained in the step (2) in batches to adjust the viscosity of the mixture, and dispersing at a high speed of 1200-1500 r/min for 1-3 h to obtain a pre-dispersion coating, wherein the solvent is a mixture of xylene and n-butyl alcohol;
(4) continuously dispersing the pre-dispersed coating obtained in the step (3) at the rotating speed of 1500r/min until the fineness of the coating is less than or equal to 80 mu m;
(5) and (5) mixing and uniformly stirring the epoxy curing agent and the mixture obtained in the step (4) according to the mass part to obtain the self-healing high-temperature-resistant anticorrosive paint.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537100A (en) * | 2022-11-09 | 2022-12-30 | 郑州圣莱特空心微珠新材料有限公司 | Epoxy zinc-rich primer containing conductive polyaniline coated hollow glass beads and preparation method thereof |
| CN116376344A (en) * | 2023-04-12 | 2023-07-04 | 上海航天精密机械研究所 | Room-temperature rapid-curing high-temperature-resistant gradient ceramic putty and preparation method thereof |
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2021
- 2021-11-29 CN CN202111432685.3A patent/CN114426800A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537100A (en) * | 2022-11-09 | 2022-12-30 | 郑州圣莱特空心微珠新材料有限公司 | Epoxy zinc-rich primer containing conductive polyaniline coated hollow glass beads and preparation method thereof |
| CN116376344A (en) * | 2023-04-12 | 2023-07-04 | 上海航天精密机械研究所 | Room-temperature rapid-curing high-temperature-resistant gradient ceramic putty and preparation method thereof |
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